EP0176687A2 - Sealing device for throttle valves - Google Patents

Sealing device for throttle valves Download PDF

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Publication number
EP0176687A2
EP0176687A2 EP85109274A EP85109274A EP0176687A2 EP 0176687 A2 EP0176687 A2 EP 0176687A2 EP 85109274 A EP85109274 A EP 85109274A EP 85109274 A EP85109274 A EP 85109274A EP 0176687 A2 EP0176687 A2 EP 0176687A2
Authority
EP
European Patent Office
Prior art keywords
sealing
ring
body part
slot
flanges
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85109274A
Other languages
German (de)
French (fr)
Other versions
EP0176687B1 (en
EP0176687A3 (en
Inventor
Folke Hubert Hubertson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Somas Ventiler AB
Original Assignee
Somas Ventiler AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Somas Ventiler AB filed Critical Somas Ventiler AB
Priority to AT85109274T priority Critical patent/ATE57426T1/en
Publication of EP0176687A2 publication Critical patent/EP0176687A2/en
Publication of EP0176687A3 publication Critical patent/EP0176687A3/en
Application granted granted Critical
Publication of EP0176687B1 publication Critical patent/EP0176687B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat

Definitions

  • the invention relates to a sealing device for such throttle valves as comprise a valve housing with a valve seat and a pivotally movable throttle member which may be pressed against the valve seat to bring about a sealing contact between two interacting sealing surfaces, one on the throttle member and the other in the valve housing and a sealing ring to be mounted in a slot in the valve.
  • a sealing device of the type referred to in the preamble is known for instance from US-A-428426 4 .
  • This known device comprises a homogeneous sealing ring intended to be mounted in a slot in the valve housing.
  • the valve ring cross-section is an elongated flat body.
  • the ring normally consists of metal and is considerably rigid with respect to deformation in the radial direction.
  • the ring may, however, be bent aside by the throttle, when the throttle is pressed against the sealing ring.
  • the inner, bluntly rounded edge of the ring constitutes the second sealing surface referred to above.
  • a pair of spring washers are pressed against the two flat sides of the sealing nng, and between these two washers is formed the slot in which the sealing ring is mounted.
  • the spring washers are in turn arranged between the valve housing and a mounting ring, gaskets being placed between the latter parts and the spring washers.
  • the object of the invention is to provide an improved sealing device for throttle valves of the type referred to in the preamble.
  • an object is to eliminate the disadvantage listed above of prior art sealing devices for throttle valves.
  • the sealing ring having a homogeneous, radially ablong body part of considerable rigidity and resistance to radial deformation, by the homogeneous body part having at its head end a sealing surface, constituting one of the two sealing surfaces mentioned in the preamble, and by two essentially radially directed legs extending from the "hip" portion of the homogeneous body, said legs forming 1 , 1 nge-like extensions of the sealing ring, said extensions being intended to be pressed in the axial direction against the walls of the slot.
  • the valve comprises a valve housing 1 with a main part and a cover ring 3; a pivotally mounted throttle 4; and a sealing ring 5 in an annular slot 6 in the valve housing between the main part 2 and the cover ring 3.
  • the throttle 4 has a sealing surface 7, which according to this embodiment is of the same configuration as in US-A-4284264.
  • the sealing device according to the invention is not limited, however, to be used with this throttle configuration.
  • the sealing ring 5 normally consists of stainless, acid- proof steel; an alternative is a very stiff plastic material. It is also conceivable that the ring 5 consists of a composite material or is composed of several materials.
  • the ring 5 has a section which has a "creature"-resembling configuration with an elongated body part 8. The two sides 9, 10 of the body part 8 are completely flat and parallel. At that end 7 of the ring, which is directed toward the throttle member, the body part 8 is transfigurated directly into a "head" part 11 with a bluntly rounded surface 12, which constitutes the first sealing surface of the valve, against which the sealing surface 7 of the throttle 4 may be pressed.
  • a pair of annular flanges 14, 15 extend radially, symmetrically outwards.
  • the flanges 14 and 15 form the legs of the creature-resembling figure.
  • the feet/ledges 16, 17 are pressed by spring action of the legs/flanges 14, 15 against the walls 18 and 19, respectively, of the slot 6.
  • the configuration of the ring 5 ensures the desired combination of radial rigidity, axial flexibility, and sealing ability against the two walls 18, 19 of the slot 6.
  • the ring 5 by itself is stiff enough, which means that the two legs/flanges 14, 15 need not “brace their feet" 16, 17 against the bottom 20 of the slot 6.
  • the slot 6 is so deep that the ring 5 may be displaced radially, i.e. the diameter of the slot 6 is greater than the outer diameter of the ring 5.
  • the position of the ring 5 is thus adaptable to the throttle 4 when the valve is first closed. During this adaptation, the feet/ledges 1 6, 17 will slide against the parallel radial walls 18, 19 of the slot 6 without losing their sealing contact with them.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Fluid-Driven Valves (AREA)
  • Glass Compositions (AREA)
  • Temperature-Responsive Valves (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention relates to a sealing device for such throttle valves as comprise a valve housing with a valve seat and a pivotally mounted throttle member which may be pressed against the valve seat to bring about a sealing contact between two interacting sealing surfaces, one on the throttle member and the other in the valve housing and a sealing ring to be mounted in a slot in the valve. The invention is charactenzed in that the sealing nng (5) has a cross-section of a homogeneous. radially elongated body part (8) of considerable ogidity and resistance to radial deformation, that said body part at its head end (11) has a sealing surface (12) which is one of the two said sealing surfaces, and that from the "hip" part of the said homogeneous body part extend two essentially radial legs (14, 15), which form flanges of the sealing ring, said flanges being arranged to be pressed axially against the walls (18, 19) of said slot.

Description

    TECHNICAL FIELD
  • The invention relates to a sealing device for such throttle valves as comprise a valve housing with a valve seat and a pivotally movable throttle member which may be pressed against the valve seat to bring about a sealing contact between two interacting sealing surfaces, one on the throttle member and the other in the valve housing and a sealing ring to be mounted in a slot in the valve.
    • BACKGROUND ART
  • A sealing device of the type referred to in the preamble is known for instance from US-A-4284264. This known device comprises a homogeneous sealing ring intended to be mounted in a slot in the valve housing. The valve ring cross-section is an elongated flat body. The ring normally consists of metal and is considerably rigid with respect to deformation in the radial direction. The ring may, however, be bent aside by the throttle, when the throttle is pressed against the sealing ring. The inner, bluntly rounded edge of the ring constitutes the second sealing surface referred to above. A pair of spring washers are pressed against the two flat sides of the sealing nng, and between these two washers is formed the slot in which the sealing ring is mounted. The spring washers are in turn arranged between the valve housing and a mounting ring, gaskets being placed between the latter parts and the spring washers. Although this known device has several positive qualities compared to prior art and has signified a substantial improvement within this particular field, the two spring washers and the gaskets do constitute a complication.
  • From for instance US-A-3080145 and US-A-4058290 the use of sealing washers with a U-shaped section is known for throttle valves with metallic sealing. In comparison with US-A-4284264 these have the advantage of being uncomplicated and not requiring separate gaskets. On the other hand, they have a low rigidity and resistance to radial deformation, which is unsatisfactory at least for some applications.
    • DISCLOSURE OF THE INVENTION
  • The object of the invention is to provide an improved sealing device for throttle valves of the type referred to in the preamble. In particular, an object is to eliminate the disadvantage listed above of prior art sealing devices for throttle valves.
  • These and other objects may be accomplished by the sealing ring having a homogeneous, radially ablong body part of considerable rigidity and resistance to radial deformation, by the homogeneous body part having at its head end a sealing surface, constituting one of the two sealing surfaces mentioned in the preamble, and by two essentially radially directed legs extending from the "hip" portion of the homogeneous body, said legs forming 1,1nge-like extensions of the sealing ring, said extensions being intended to be pressed in the axial direction against the walls of the slot.
  • Further advantages and characteristics of the invention will become apparent from the appended claims and the following description of a preferred embodiment.
    • DESCRIPTION OF A PREFERRED EMBODIMENT
  • In the following description reference will be made to the drawing figure, which shows an axial section of a throttle valve with a sealing device according to the invention. The valve comprises a valve housing 1 with a main part and a cover ring 3; a pivotally mounted throttle 4; and a sealing ring 5 in an annular slot 6 in the valve housing between the main part 2 and the cover ring 3. The throttle 4 has a sealing surface 7, which according to this embodiment is of the same configuration as in US-A-4284264. The sealing device according to the invention is not limited, however, to be used with this throttle configuration.
  • The sealing ring 5 normally consists of stainless, acid- proof steel; an alternative is a very stiff plastic material. It is also conceivable that the ring 5 consists of a composite material or is composed of several materials. The ring 5 has a section which has a "creature"-resembling configuration with an elongated body part 8. The two sides 9, 10 of the body part 8 are completely flat and parallel. At that end 7 of the ring, which is directed toward the throttle member, the body part 8 is transfigurated directly into a "head" part 11 with a bluntly rounded surface 12, which constitutes the first sealing surface of the valve, against which the sealing surface 7 of the throttle 4 may be pressed.
  • From the "hip" 13 of the body part 8, i.e. from the peripheral part of the homogeneous part of the ring 5, a pair of annular flanges 14, 15 extend radially, symmetrically outwards. In the section illustrated, the flanges 14 and 15 form the legs of the creature-resembling figure. On the legs 14. 15 there extend a pair of feet 16, 17, each being an outwardly pointing ledge on the respective flanges 14, 15. The feet/ledges 16, 17 are pressed by spring action of the legs/flanges 14, 15 against the walls 18 and 19, respectively, of the slot 6. The configuration of the ring 5 ensures the desired combination of radial rigidity, axial flexibility, and sealing ability against the two walls 18, 19 of the slot 6. The ring 5 by itself is stiff enough, which means that the two legs/flanges 14, 15 need not "brace their feet" 16, 17 against the bottom 20 of the slot 6. On the contrary, the slot 6 is so deep that the ring 5 may be displaced radially, i.e. the diameter of the slot 6 is greater than the outer diameter of the ring 5. The position of the ring 5 is thus adaptable to the throttle 4 when the valve is first closed. During this adaptation, the feet/ledges 16, 17 will slide against the parallel radial walls 18, 19 of the slot 6 without losing their sealing contact with them.

Claims (5)

1. Sealing device for such throttle valves as comprise a valve housing with a valve seat and a pivotally mounted throttle member, said throttle member being arranged to be pressed against the valve seat to bring about sealing between two interacting sealing surfaces, one on the throttte member and the other on the valve housing, and a sealing ring, said ring being arranged to be mounted in a slot in the valve, characterized in that the sealing ring (5) has a cross-section of a homogeneous, radially elongated body part (8) of considerable rigidity and resistance to radial deformation, that said body part at its head end (11) has a sealing surface (12) which is one of the two said sealing surfaces, and that from the "hip" part of the said homogeneous body part extend two essentially radial legs (14, 15), which form flanges of the sealing ring, said flanges being arranged to be pressed axially against the walls (18, 19) of said slot
2. Sealing device according to claim 1, characterized in that the radial extension of the homogeneous body part is at least equal to that of the legs/flanges (14, 15).
3. Sealing device according to claim 1 or 2, characterized in that each of the two legs/flanges (14, 15) is provided with at least one encircling ledge (16, 17).
4. Sealing device according to any of the claims 1-3, characterized in that the ring is intended to be arranged in a slot (6) in the valve housing there to form the valve seat, that said first sealing surface is an inner, bluntly rounded edge of the ring, and that the two legs/flanges (14, 15) extend radially outwards from the homogeneous body part (8) of the ring
5. Sealing device according to claim 4, characterized in that the outer diameter of the slot in the valve housing is greater than that of the sealing ring.
EP85109274A 1984-09-27 1985-07-24 Sealing device for throttle valves Expired - Lifetime EP0176687B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85109274T ATE57426T1 (en) 1984-09-27 1985-07-24 SEALING DEVICE FOR THROTTLE VALVES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8404833A SE445382B (en) 1984-09-27 1984-09-27 GAS VALVE SEALING DEVICE
SE8404833 1984-09-27

Publications (3)

Publication Number Publication Date
EP0176687A2 true EP0176687A2 (en) 1986-04-09
EP0176687A3 EP0176687A3 (en) 1987-06-24
EP0176687B1 EP0176687B1 (en) 1990-10-10

Family

ID=20357147

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85109274A Expired - Lifetime EP0176687B1 (en) 1984-09-27 1985-07-24 Sealing device for throttle valves

Country Status (12)

Country Link
US (1) US4634097A (en)
EP (1) EP0176687B1 (en)
JP (1) JP2528816B2 (en)
AT (1) ATE57426T1 (en)
AU (1) AU574491B2 (en)
BR (1) BR8504281A (en)
CA (1) CA1276925C (en)
DE (1) DE3580087D1 (en)
FI (1) FI82128C (en)
NO (1) NO159617C (en)
SE (1) SE445382B (en)
ZA (1) ZA856570B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606484A1 (en) * 1986-11-12 1988-05-13 Coyard Expl Ets E R Butterfly valve
DE3744548A1 (en) * 1987-01-02 1988-07-14 Somas Ventiler THROTTLE VALVE
DE102014222517A1 (en) * 2014-11-04 2016-05-04 Continental Automotive Gmbh Valve device for a motor vehicle

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752033B1 (en) * 1996-07-31 1998-09-11 Ksb Sa RIGID SEALING TAP
EP0822358B1 (en) * 1996-07-31 2003-04-09 Ksb S.A.S Long life centric butterfly valve
US6328054B1 (en) * 2000-07-07 2001-12-11 Parker-Hannifin Corporation-Veriflo Division Balanced fluid pressure regulator
DE10060004B4 (en) * 2000-12-02 2005-08-25 Warex Valve Gmbh Shut-off device with a pivoting rotary flap and an entropy-elastic ring seal held on a support ring
US6981435B2 (en) * 2003-05-08 2006-01-03 Chih-Ching Hsien Ratchet wrench having a sealing structure
DE102006045420A1 (en) * 2006-09-26 2008-04-10 Pierburg Gmbh Throttle valve device for an internal combustion engine
FR2922988B1 (en) 2007-10-31 2012-10-12 Saint Gobain Performance Plast PIPE ASSEMBLIES
FR2922984B1 (en) * 2007-10-31 2013-09-27 Saint Gobain Performance Plast VALVE HAVING RIGID SEAL
US8348236B2 (en) * 2007-10-31 2013-01-08 Saint-Gobain Performance Plastics Corporation Butterfly valve with a rigid seal
FR3067783B1 (en) * 2017-06-20 2020-09-04 Ksb Sas CENTER BUTTERFLY VALVE
CN114791064A (en) * 2021-01-26 2022-07-26 中国航发商用航空发动机有限责任公司 Throttling assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3080145A (en) * 1957-10-24 1963-03-05 David F Wiseman & Sons Ltd Butterfly valves
DE1247104B (en) * 1960-07-18 1967-08-10 Marvin Henry Grove Sealing ring
DE1802075B2 (en) * 1967-11-07 1972-11-09 Ateliers Des Charmilles S.A., Genf (Schweiz) Throttle valve with uninterrupted seat seal
US4058290A (en) * 1975-04-15 1977-11-15 Neles Oy Gate valve
AU506099B2 (en) * 1976-02-25 1979-12-13 Macawber Engineering Rotary valve for abrasive materials
US4284264A (en) * 1980-01-17 1981-08-18 Aktiebolaget Somas Ventiler Butterfly valves
DE3151787A1 (en) * 1980-12-31 1982-07-15 Masoneilan International, Inc., 02062 Norwood, Mass. THROTTLE VALVE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3029063A (en) * 1958-08-29 1962-04-10 Alfred M Moen Butterfly valve
US4294283A (en) * 1977-11-25 1981-10-13 Scharres Harry J Wedge sealed damper
US4254937A (en) * 1978-11-17 1981-03-10 Aktiebolaget Somas Ventiler Butterfly valve
NO152308C (en) * 1978-11-17 1985-09-04 Somas Ventiler Butterfly Valves
US4372530A (en) * 1981-06-05 1983-02-08 Quartrol Corporation Valve and seal

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3080145A (en) * 1957-10-24 1963-03-05 David F Wiseman & Sons Ltd Butterfly valves
DE1247104B (en) * 1960-07-18 1967-08-10 Marvin Henry Grove Sealing ring
DE1802075B2 (en) * 1967-11-07 1972-11-09 Ateliers Des Charmilles S.A., Genf (Schweiz) Throttle valve with uninterrupted seat seal
US4058290A (en) * 1975-04-15 1977-11-15 Neles Oy Gate valve
AU506099B2 (en) * 1976-02-25 1979-12-13 Macawber Engineering Rotary valve for abrasive materials
US4284264A (en) * 1980-01-17 1981-08-18 Aktiebolaget Somas Ventiler Butterfly valves
DE3151787A1 (en) * 1980-12-31 1982-07-15 Masoneilan International, Inc., 02062 Norwood, Mass. THROTTLE VALVE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606484A1 (en) * 1986-11-12 1988-05-13 Coyard Expl Ets E R Butterfly valve
DE3744548A1 (en) * 1987-01-02 1988-07-14 Somas Ventiler THROTTLE VALVE
DE3744548B4 (en) * 1987-01-02 2004-03-11 Aktiebolaget Somas Ventiler throttle valve
DE102014222517A1 (en) * 2014-11-04 2016-05-04 Continental Automotive Gmbh Valve device for a motor vehicle

Also Published As

Publication number Publication date
US4634097A (en) 1987-01-06
AU4580885A (en) 1986-04-10
FI82128C (en) 1991-01-10
FI852962L (en) 1986-03-28
DE3580087D1 (en) 1990-11-15
JPS6182077A (en) 1986-04-25
ZA856570B (en) 1986-04-30
ATE57426T1 (en) 1990-10-15
SE445382B (en) 1986-06-16
FI852962A0 (en) 1985-07-31
JP2528816B2 (en) 1996-08-28
NO853197L (en) 1986-04-01
FI82128B (en) 1990-09-28
AU574491B2 (en) 1988-07-07
CA1276925C (en) 1990-11-27
BR8504281A (en) 1986-06-17
NO159617C (en) 1989-01-18
EP0176687B1 (en) 1990-10-10
NO159617B (en) 1988-10-10
SE8404833D0 (en) 1984-09-27
SE8404833L (en) 1986-03-28
EP0176687A3 (en) 1987-06-24

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